Surface Mount Fuses Thin Film > 1206 Size > Slo-Blo Fuse > 468 Series RoHS Pb 468 Series 1206 Slo-Blo Fuse Description The 468 Series Slo-Blo Surface Mount Fuse (SMF) is a small (1206 size) thin-film device designed for secondary protection of circuits used in space constrained applications such as hand-held portable electronic devices. This series is 100% lead-free and meets the requirements of the RoHS directive. New Halogen-Free 468 Series fuses are availableto order use the HF suffix. See Part Numbering section for additional information. Agency Approvals Features Complies with Package is visually AGENCY AGENCY FILE NUMBER AMPERE RANGE electronic industry distinct from fast- environmental standards acting version for easy E10480 0.5A - 3A for lead reduction. identification. 29862 0.5A - 3A Product is compatible Top side marking allows with lead-free solders visual verification of and higher temperature amperage rating. Electrical Characteristics for Series profiles. RoHS, lead-free and Time delay feature halogen-free compliant. % of Ampere O Opening Time at 25 C withstands high inrush Rating currents and prevents 100% 4 hours, Minimum nuisance openings. 200% 1 sec., Min. 120 sec., Max. 300% 0.05 sec., Min. 1.5 sec., Max Applications 800% 0.0015 sec., Min05 sec., Max. Secondary protection for space constrained applications: Additional Information Cell phones DVD players Battery packs Hard disk drives. Digital cameras Datasheet Resources Samples Electrical Specifications by Item Max Nom Nom Agency Ampere Nominal Cold Nominal Amp Voltage Interrupting Voltage Power Approvals Rating Resistance Melting Code Rating Rating Drop Dissipation 2 2 (A) (Ohms) I t (A sec) (V) (mV) (W) 0.50 .500 63 0.27000 0.0310 156.77 0.0784 x x 1.00 001. 63 50A 63 VAC/VDC 0.0790 0.1270 94.70 0.0947 x x 1.50 01.5 63 0.0440 0.2880 82.32 0.1235 x x 2.00 002. 63 0.0325 0.5060 77.27 0.1545 x x 35A 63 VAC 50A 63 VDC 2.50 02.5 63 0.0240 1.0110 73.92 0.1848 x x 3.00 003. 32 50A 32 VAC/VDC 0.01950 1.2700 72.95 0.2189 x x 1. Measured at 10% of rated current, 25C. 2. Measured at rated voltage. 2018 Littelfuse, Inc. Specifications are subject to change without notice Application testing is strongly recommended. Revised: 12/13/18 Surface Mount Fuses Thin Film > 1206 Size > Slo-Blo Fuse > 468 Series Temperature Re-rating Curve Average Time Current Curves 100 10 1 0.1 Note: 1. Rerating depicted in this curve is in addition to the standard derating of 25% for 0.01 continuous operation. Example: For continuous operation at 70 degrees celsius, the fuse should be deratedas follows: I = (0.75)(0.80)I = (0.60)I RAT RAT 0.001 2. The temperature derating curve represents the nominal conditions. For questions 0 1 10 100 about temperature derating curve, please consult Littelfuse technical support Current in Amperes for assistance. Soldering Parameters t P Reflow Condition Pb Free assembly T P Critical Zone Ramp-up TL to TP - Temperature Min (T ) 150C s(min) T L Pre Heat - Temperature Max (T ) 200C t L s(max) T S(max) - Time (Min to Max) (t ) 60 180 secs s Ramp-down Average ramp up rate (Liquidus Temp Preheat 5C/second max T (T ) to peak S(min) L t S T to T - Ramp-up Rate 5C/second max S(max) L - Temperature (T ) (Liquidus) 217C L 25 Reflow time to peak temperature - Temperature (t ) 60 150 seconds Time L (t 25C to peak) +0/- 5 Peak Temperature (T ) 260 C P Time within 5C of actual peak 20 40 seconds Temperature (t ) p Ramp-down Rate 5C/second max Time 25C to peak Temperature (T ) 8 minutes Max. P Do not exceed 260C Wave Soldering 260C, 10 seconds max. 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/13/18 Time in Seconds .5A 1A 1.5A 2A 2.5A 3A Temperature